Dielectric barrier discharge-induced vortex generation with discharge-actuated boundary layer bleed

Seong Kyun Im, Moon Soo Bak, Mark Godfrey Mungal, Mark A. Cappelli

Research output: Contribution to journalArticle

Abstract

The characteristics of vortices induced by spanwise forcing using a streamwise-oriented dielectric barrier discharge (DBD) vortex generator (VG) are investigated with and without a boundary layer bleed slot, the flow of which is also driven by a DBD actuator. The velocity fields of the induced flows are characterized by ensemble averaged particle image velocimetry. A stronger downward motion and proximity of the induced vortex to the forcing electrode and the wall are observed when the DBD VG is used in conjunction with a DBD-active bleed slot. The effect of varying the applied voltage and freestream velocity on the induced vortex is examined. Researches are carried out on the ability for this DBD VG to control the separation on an inclined flat-plate and diverging ramp. We find that the DBD VG, together with DBD-activated bleed slots, leads to more robust separation control in these adverse pressure gradient configurations.

Original languageEnglish
Article number6584820
Pages (from-to)3245-3253
Number of pages9
JournalIEEE Transactions on Plasma Science
Volume41
Issue number12
DOIs
Publication statusPublished - 2013 Dec 1
Externally publishedYes

Fingerprint

vortex generators
boundary layers
slots
vortices
particle image velocimetry
flat plates
ramps
pressure gradients
proximity
velocity distribution
actuators
electrodes
electric potential
configurations

Keywords

  • Flow control
  • Plasma application

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Dielectric barrier discharge-induced vortex generation with discharge-actuated boundary layer bleed. / Im, Seong Kyun; Bak, Moon Soo; Mungal, Mark Godfrey; Cappelli, Mark A.

In: IEEE Transactions on Plasma Science, Vol. 41, No. 12, 6584820, 01.12.2013, p. 3245-3253.

Research output: Contribution to journalArticle

Im, Seong Kyun ; Bak, Moon Soo ; Mungal, Mark Godfrey ; Cappelli, Mark A. / Dielectric barrier discharge-induced vortex generation with discharge-actuated boundary layer bleed. In: IEEE Transactions on Plasma Science. 2013 ; Vol. 41, No. 12. pp. 3245-3253.
@article{5f3caaae60a84c6f8829624eebb10db9,
title = "Dielectric barrier discharge-induced vortex generation with discharge-actuated boundary layer bleed",
abstract = "The characteristics of vortices induced by spanwise forcing using a streamwise-oriented dielectric barrier discharge (DBD) vortex generator (VG) are investigated with and without a boundary layer bleed slot, the flow of which is also driven by a DBD actuator. The velocity fields of the induced flows are characterized by ensemble averaged particle image velocimetry. A stronger downward motion and proximity of the induced vortex to the forcing electrode and the wall are observed when the DBD VG is used in conjunction with a DBD-active bleed slot. The effect of varying the applied voltage and freestream velocity on the induced vortex is examined. Researches are carried out on the ability for this DBD VG to control the separation on an inclined flat-plate and diverging ramp. We find that the DBD VG, together with DBD-activated bleed slots, leads to more robust separation control in these adverse pressure gradient configurations.",
keywords = "Flow control, Plasma application",
author = "Im, {Seong Kyun} and Bak, {Moon Soo} and Mungal, {Mark Godfrey} and Cappelli, {Mark A.}",
year = "2013",
month = "12",
day = "1",
doi = "10.1109/TPS.2013.2278027",
language = "English",
volume = "41",
pages = "3245--3253",
journal = "IEEE Transactions on Plasma Science",
issn = "0093-3813",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "12",

}

TY - JOUR

T1 - Dielectric barrier discharge-induced vortex generation with discharge-actuated boundary layer bleed

AU - Im, Seong Kyun

AU - Bak, Moon Soo

AU - Mungal, Mark Godfrey

AU - Cappelli, Mark A.

PY - 2013/12/1

Y1 - 2013/12/1

N2 - The characteristics of vortices induced by spanwise forcing using a streamwise-oriented dielectric barrier discharge (DBD) vortex generator (VG) are investigated with and without a boundary layer bleed slot, the flow of which is also driven by a DBD actuator. The velocity fields of the induced flows are characterized by ensemble averaged particle image velocimetry. A stronger downward motion and proximity of the induced vortex to the forcing electrode and the wall are observed when the DBD VG is used in conjunction with a DBD-active bleed slot. The effect of varying the applied voltage and freestream velocity on the induced vortex is examined. Researches are carried out on the ability for this DBD VG to control the separation on an inclined flat-plate and diverging ramp. We find that the DBD VG, together with DBD-activated bleed slots, leads to more robust separation control in these adverse pressure gradient configurations.

AB - The characteristics of vortices induced by spanwise forcing using a streamwise-oriented dielectric barrier discharge (DBD) vortex generator (VG) are investigated with and without a boundary layer bleed slot, the flow of which is also driven by a DBD actuator. The velocity fields of the induced flows are characterized by ensemble averaged particle image velocimetry. A stronger downward motion and proximity of the induced vortex to the forcing electrode and the wall are observed when the DBD VG is used in conjunction with a DBD-active bleed slot. The effect of varying the applied voltage and freestream velocity on the induced vortex is examined. Researches are carried out on the ability for this DBD VG to control the separation on an inclined flat-plate and diverging ramp. We find that the DBD VG, together with DBD-activated bleed slots, leads to more robust separation control in these adverse pressure gradient configurations.

KW - Flow control

KW - Plasma application

UR - http://www.scopus.com/inward/record.url?scp=84890972055&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84890972055&partnerID=8YFLogxK

U2 - 10.1109/TPS.2013.2278027

DO - 10.1109/TPS.2013.2278027

M3 - Article

VL - 41

SP - 3245

EP - 3253

JO - IEEE Transactions on Plasma Science

JF - IEEE Transactions on Plasma Science

SN - 0093-3813

IS - 12

M1 - 6584820

ER -